Extensible step.



'Y I w. GRAY.

EXTENSIBLE STEP.

APPLICATION FILED APR. 28, ISIS.

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W. GRAY.

EXTENSIBLE STEP.

APPLICATION FILED Anza. 1915.

Patented Deo. 7, 1915.

2 SHEETS-SHEET 2 yto y @friet Fllt@ FFE@ WALTER GRAY, OF'FORT HUACHUCA,ARIZONA, ASSXGNOR 0F GNE-HALF T0 HEZIKIH SESSION, OF FR@ HUACHUCA,ARIZONA.

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- Specication of Letters Patent.

Patented Eea. 7, 1915.

Application ined Apffii es, isis. "sei-iai ivo. 24,554."

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Be it known'that l, lVALrnn GRAY,k a citizen of the UnitedStates,residing at Fort Huachuca, in the' 'county of Cochise and State ofArizona, have invented certain new and useful Improvements in`Extensible Steps; and I do hereby declare the following to be aull,clear, and exact description of the'invention, such as will enableothers skilled in the art to which it appertains to make and use thesame. l

This invention relates to steps and4 more particularly to steps of theextensible type especially designed for use in connection with railwaypassenger cars.

The invention has fory its'object to provide extensible steps for carsincluding upper fand lower sections, the upper section beingmovablerelative to thelower section, whereby the latter may be elevated whenthe car is traveling.

Another object is the provision of novel and efficient means forelevating and retaining the relatively movable section in in- Yoperative position.

With these and other objects in view, the invention consists in thenovel construction, arrangement and formation of parts as will behereinafter specifically described, claimed and illustrated in theaccompanying drawing, in which:

F igurel represents a rear elevation of the eXtensible step applied tothe platform of a car. Fig. 2 represents a vertical sectional view onthe line 2--2 of Fig. 1. Fig. 3 represents a sectional view similar toFig. 2, illustrating the steps in retracted or inoperative position.Fig. 4 represents a perspective view of the upper or relatively1stationary section. Fig. 5 represents a fragmental perspective view ofthe lower or relatively movable section. Fig. 6 represents a fragmentalperspective view of the relativelyT movable step slidably mounted in theuppery section, and Fig. 7 represents a detailed sectional view on theline 7-7 of Fig. 3. l

Referring to the drawing in det-ail, wherein similar reference numeralsdesignate corresponding parts throughout the several views, the numeral10 indicates generally the upper sectiony of thek steps which includesan attaching plate l1 and a pair of spaced inclined side members 12secured to and depending from the plate 11. A relatively stationary step13 is rigidly secured between the'sidemembers 12 and is formed in itsends with recesses 1l slidably receiving the the side members 12 uponopposite sides of"kk the openings 17' and receive the relatively smallextensions or lugs 21 formed on the ends of the movable step 19 forsecuring the latter against tilting forwardly oigrear wardly. i Theopenings 17 and 9.0 in the side" members are of suiiicient length topermit the nio able step 19 to benioved upwardlyy intoengagement.withthe relatively stationary step 13, when the stepsare moved to'inoperative position.

The lower or relatively movable section 16 includes a pair of spacedsidemembers 23 slidably engaged against the inner surfaces of the sidemembers 12 ot the upper section 10, and theguides, orsupportingbrackets,`

15 arey secured to the side members 23,*as clearly illustrated Vin Fig.5. The upper extremities of the guides 15 are formed with longitudinallyelongated openings 2e receiving the central extensions 18 of the rela,-ytively movable step 19, whereby the lower or relatively movable sectionis supported in extended position. A step 25 is secured be'- tween theupper extremities of the side members 23 and is adapted, when the lowersection is moved upwardly to inoperative position, to engage and movetherewith ythe relatively movable. step 19 of the upper section. As manysteps 26 as are required are f secured between the side members 23 belowthe upper step 25.

The upper section 10 is rigidly and per manently secured to the underside of the platform 27 of a railway passenger car. A shaft 28 isrotatably supported below the platform Q9 and a winding drum 30 is keyedupon one end of the shaft in vertical alinement with the longitudinalcenter of the `eXtensible steps. A cable 31 is secured at one end to thedrumBO and at its opposite end to the lowermost step 26 of the lowersection 16. An operating lever 32 is pivotally secured in the platform27 and carries a gear segment 33L at its lower extremity-which mesheswith Aa pinion Ssecured to the shaft 28 at the end opposite the drum 30.The

upper end of the lever 22 carriesV a handle,

whereby the same may befoscillated to 'ro-v k tate the shaft 28 anddrumV 30 and thus wind and Vunwind the cable 31 toI raise and lower theextensiblepsection 16. A suitable rtype ofv locking mechanism 35'isprovided for locking the lever32 and coperating parts in adjustedposition. A l

In use, the lower section 16 and relatively movable step 19automatically drop to op-Y erative position, when the lever 32 is movedVoutwardly, by gravity, the section 16 being Vsupported bythe guides 15engaged over the central extensions 18 of the relatively movable step1,9. l/Vhen 'the lever 32 is moved inwardly to the position illustratedin F ig. 3, thel cable 31 is wound upon they tively stationary section,a movable section,`

i means for guiding and limiting the movement of the movable sectionincluding a step movably secured in the relatively stationary section',and means for elevating the movable section. r l

2.1`An extensible .step including rela-V ideata@ tively stationarysection, a movable section, a step movably disposed in the relativelystationaryy section adapted to be engaged and elevated bythe movablesection.

An extensible step comprising a relatively lstationary section, amovable section, a movable step secured in the relatively stationarysection Vadapted torbe engaged and moved 'upwardly by the movablesection, and means forelevating'the movable section.

fl. An extensible step comprising a relatively stationary section, amovable section, a movable Vstep` secured in the relatively stationarysection adapted to be engaged and elevated by the movable Sectio-n,a'shaft, a l

leverlconnected with said shaft, Vand connectionsbetween said shaft andthe movable section.

5.` An v, extensibleV car vstep comprising an upper Sectio-n, a stepmovably securedrin f.

said upper section, a lower section, and means connecting said lowersection with said movable step and movable relative thereto. I p

6. An extensible car step comprising ay relatively stationary section, amovable step secured in said section, Aa movable section,

Vmeans connecting saidV movable section with said movable step andmovable relative thereto, and means for elevating the `mov Y Copies ofthis patent may be obtained for ve cents each, by addressing `'cheCommissioner of-'Patentsl f i Washington, D. C, i

